Image Name: Neon Filled Crackle Tube Gallery Page: Plasma Tubes Clear section is filled with hundreds of pieces of small tubing, creating numerous paths for the plasma to take. 480 x 640 pixels  (74 KB)   Back to Gallery Page: Plasma Tubes  Would you like to post a comment on this image? » In order to post comments you need to Sign Up for an Account. » If you already have an Account, you can Sign in. to post a comment.